Hello, I am getting ready to order a M3 LR and have not been able to test auto pilot features due to the dealership being in a big city. Can anyone tell me, what does auto pilot include? Say I commute 2 hours every day to work on a long highway at 75mph, will I benefit from these any of the AP features?
Your use case is the single best place for the feature.
My own drive to/from work is similar (though not quite as long) and it's the biggest reason I bought the car (though I do have FSD with adds some nice to haves like lane changes and auto-handling of interchanges and exits)
Basic AP that comes on the car will auto-steer within a single lane, and maintain speed and follow distance relative to any car ahead of it in that lane.
Changing lanes is manual, as are handling exits and interchanges.
Officially the feature is only intended for use on divided highways where access is restricted (on/off ramps, no intersections, no cross traffic).
But it'll allow you to turn it on pretty much anywhere it can see lane markings. Just don't be shocked if it does something weird/unexpected/dangerous since it's not intended to be used in those situations
(for example in an undivided two way road, if a car way ahead oncoming turns in front of you the car may heavily brake since as far as it knows there's now a car that WAS going your way sideways blocking your lane- even though it's really an oncoming car turning who will be well clear of your lane before you'd get there)
But for highway use? It's awesome.